0b6ce86e7a
OpenStack heavily relies on gratuitous ARP updates when moving floating
IP addresses between devices. When a floating IP moves, Neutron L3 agent
issues a burst of gratuitous ARP packets that should update any existing
ARP table entries on all nodes that belong to the same network segment.
Due to locktime kernel behavior, some gratuitous ARP packets may be
ignored [1], rendering ARP table entries broken for some time. Due to a
kernel bug [2], the time may be as long as hours, depending on other
traffic flowing to the node.
With the current EL7 kernel, the only way to make sure that nodes honor
all sent gratuitous ARP updates is to set arp_accept to 1; this will
disable locktime mechanism for the packets sent by Neutron L3 agent, and
will make sure ARP tables are always updated.
[1] https://patchwork.ozlabs.org/patch/762732/
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1450203
Conflicts:
puppet/services/kernel.yaml
Related-Bug: #1690165
Change-Id: I863b240e0ab4c4d5bb844f91b607fd0937d5cedf
(cherry picked from commit
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| ci | ||
| deployed-server | ||
| docker | ||
| environments | ||
| extraconfig | ||
| firstboot | ||
| network | ||
| puppet | ||
| releasenotes | ||
| scripts | ||
| tools | ||
| validation-scripts | ||
| .gitignore | ||
| .gitreview | ||
| LICENSE | ||
| MANIFEST.in | ||
| README.rst | ||
| all-nodes-validation.yaml | ||
| babel.cfg | ||
| bindep.txt | ||
| bootstrap-config.yaml | ||
| capabilities-map.yaml | ||
| default_passwords.yaml | ||
| hosts-config.yaml | ||
| j2_excludes.yaml | ||
| net-config-bond.yaml | ||
| net-config-bridge.yaml | ||
| net-config-linux-bridge.yaml | ||
| net-config-noop.yaml | ||
| net-config-static-bridge-with-external-dhcp.yaml | ||
| net-config-static-bridge.yaml | ||
| net-config-static.yaml | ||
| net-config-undercloud.yaml | ||
| overcloud-resource-registry-puppet.j2.yaml | ||
| overcloud.j2.yaml | ||
| requirements.txt | ||
| roles_data.yaml | ||
| roles_data_undercloud.yaml | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
README.rst
Team and repository tags
tripleo-heat-templates
Heat templates to deploy OpenStack using OpenStack.
- Free software: Apache license
- Documentation: http://docs.openstack.org/developer/tripleo-docs
- Source: http://git.openstack.org/cgit/openstack/tripleo-heat-templates
- Bugs: http://bugs.launchpad.net/tripleo
Features
The ability to deploy a multi-node, role based OpenStack deployment using OpenStack Heat. Notable features include:
- Choice of deployment/configuration tooling: puppet, (soon) docker
- Role based deployment: roles for the controller, compute, ceph, swift, and cinder storage
- physical network configuration: support for isolated networks, bonding, and standard ctlplane networking
Directories
A description of the directory layout in TripleO Heat Templates.
- environments: contains heat environment files that can be used with -e
on the command like to enable features, etc.
- extraconfig: templates used to enable 'extra' functionality. Includes
functionality for distro specific registration and upgrades.
- firstboot: example first_boot scripts that can be used when initially
creating instances.
- network: heat templates to help create isolated networks and ports
- puppet: templates mostly driven by configuration with puppet. To use these
templates you can use the overcloud-resource-registry-puppet.yaml.
- validation-scripts: validation scripts useful to all deployment
configurations
Service testing matrix
The configuration for the CI scenarios will be defined in tripleo-heat-templates/ci/ and should be executed according to the following table:
| - | scenario001 | scenario002 | scenario003 | scenario004 | multinode-nonha |
|---|---|---|---|---|---|
| keystone |
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| glance |
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| cinder |
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| heat |
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| mysql |
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| neutron |
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| rabbitmq |
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| mongodb |
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| redis |
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| haproxy |
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| keepalived |
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| memcached |
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| pacemaker |
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| nova |
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| ntp |
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| snmp |
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| timezone |
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| sahara |
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| mistral |
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| swift |
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| aodh |
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| ceilometer |
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| gnocchi |
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| panko |
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| barbican |
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| zaqar |
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| ec2api |
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| cephrgw |
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| tacker |
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| congress |
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| cephmds |
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| manila |
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